HAMBURG, Germany, 2017-Apr-30 — /EPR Retail News/ — Hamburger Sparkasse (Haspa), Germany's largest savings bank, has extended its successful IT outsourcing partnership with Diebold Nixdorf (NYSE: DBD), a global leader in driving connected commerce, for an additional seven years. This renewal builds on the 2005 agreement between the two companies in which Haspa outsourced a significant…